import { reqCartList, reqDeleteCartById, reqUpdateCheckedByid } from "@/api";
const state = {
  cartList: []
};
const mutations = {
  GETCARTLIST (state, cartList) {
    state.cartList = cartList
  }
};
const actions = {
  // 获取购物车列表
  async getCartList ({ commit }) {
    let result = await reqCartList()
    if (result.code == 200) {
      commit("GETCARTLIST", result.data)
    }

  },
  // 删除购物车某一产品
  async deleteCartListBySkuId ({ commit }, skuId) {
    let result = await reqDeleteCartById(skuId)
    if (result.code == 200) {
      return 'ok'
    } else {
      return Promise.reject(new Error('faile'))
    }
  },
  // 修改购物车某一商品被选中的状态
  async updateCheckedById ({ commit }, { skuId, isChecked }) {
    let result = await reqUpdateCheckedByid(skuId, isChecked)
    if (result.code == 200) {
      return 'OK'
    } else {
      return Promise.reject(new Error('faile'))
    }
  },
  // 删除全部勾选的产品
  deleteAllCheckedCart ({ dispatch, getters }) {
    let PromiseAll = [];
    getters.cartList.cartInfoList.forEach(item => {
      // 勾选为 1 则执行删除
      let promise = item.isChecked == 1 ? dispatch('deleteCartListBySkuId', item.skuId) : '';
      // 把每次返回的promise添加到数组中
      PromiseAll.push(promise);
    });
    // 勾选的全部被删除 则记为成功
    // 有一个失败，即为失败
    return Promise.all(PromiseAll)
  },
  // 修改全部产品的选中状态
  updateAllCartIsChecked ({ dispatch, state }, isChecked) {
    let promiseAll = [];
    state.cartList[0].cartInfoList.forEach(item => {
      let promise = dispatch('updateCheckedById', { skuId: item.skuId, isChecked })
      promiseAll.push(promise)
    })
    return Promise.all(promiseAll)
  }

};
const getters = {
  cartList (state) {
    return state.cartList[0] || {}
  }
};
export default {
  state,
  mutations,
  actions,
  getters
}
